CN106715081A - Blow molding device - Google Patents
Blow molding device Download PDFInfo
- Publication number
- CN106715081A CN106715081A CN201580040662.4A CN201580040662A CN106715081A CN 106715081 A CN106715081 A CN 106715081A CN 201580040662 A CN201580040662 A CN 201580040662A CN 106715081 A CN106715081 A CN 106715081A
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- CN
- China
- Prior art keywords
- prefabricated component
- mould
- blow molding
- heating furnace
- cavity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/64—Heating or cooling preforms, parisons or blown articles
- B29C49/6409—Thermal conditioning of preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/56—Opening, closing or clamping means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/58—Blowing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/28—Blow-moulding apparatus
- B29C49/30—Blow-moulding apparatus having movable moulds or mould parts
- B29C49/32—Blow-moulding apparatus having movable moulds or mould parts moving "to and fro"
- B29C2049/325—Blow-moulding apparatus having movable moulds or mould parts moving "to and fro" by using guide rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/46—Component parts, details or accessories; Auxiliary operations characterised by using particular environment or blow fluids other than air
- B29C2049/4602—Blowing fluids
- B29C2049/465—Blowing fluids being incompressible
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/16—Biaxial stretching during blow-moulding using pressure difference for pre-stretching, e.g. pre-blowing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
- B29C49/42105—Transporting apparatus, e.g. slides, wheels or conveyors for discontinuous or batch transport
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42093—Transporting apparatus, e.g. slides, wheels or conveyors
- B29C49/42107—Transporting apparatus, e.g. slides, wheels or conveyors with accumulator or temporary storage, e.g. while waiting for the blowing apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4205—Handling means, e.g. transfer, loading or discharging means
- B29C49/42113—Means for manipulating the objects' position or orientation
- B29C49/42155—Keeping center-center distance constant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
- B29C49/48185—Moulds with more than one separate mould cavity
Abstract
A blow molding device for blow molding a preform (PF) into a predetermined shape includes a batch-type mold (1) provided with cavities (2), a heating furnace (6) that heats preforms (PF) while the preforms (PF) are arranged in series and transferred, a transfer machine (8) that transfers the preforms (PF) to the cavities (2) of the mold (1) after the preforms (PF) are heated and sent out sequentially from the heating furnace (6), and a pressurized liquid feeder (4) that feeds pressurized liquid to the preforms (PF) after the preforms (PF) are arranged in all of the cavities (2) and the mold (1) is closed.
Description
Technical field
This disclosure relates to it is a kind of for by prefabricated component blow molding into the blow molding apparatus of the container with predetermined shape,
The prefabricated component is formed as the drum bottom of with using resin material.
Background technology
Representative illustration is the plastic holding device use of oriented polypropylene (OPP) (OPP) bottle and PEN (PET) bottle
In the various purposes from beverage to foods and cosmetics.Such container is generally formed in the following manner：Injection will have been passed through
The resin prefabricated component that shaping etc. is formed as the drum bottom of with is heated to realize the temperature of drawing effect, then this
By in Pressurized air supply to prefabricated component under state, at the same using stretch rod by prefabricated component blow molding into predetermined shape (for example,
Referring to JP 2003-251685 A (PTL 1)).
This Biaxially stretched blow-molded a kind of known blow molding apparatus are performed to be provided with including multiple cavities
Batch-type mould, and the mould is used, can the multiple prefabricated component of blow molding simultaneously.In this case, by prefabricated component
Arranged in series and while transmit, is heated by heating furnace to prefabricated component, and will be from heating furnace one by transmitting machine
Next prefabricated component sent out in order is arranged in the cavity of batch-type mould.It is after prefabricated component is arranged, pressurization is empty
Gas from the nozzle unit for supplying forced air be supplied to cavity in prefabricated component, with blow molding prefabricated component.
Reference listing
Patent document
PTL 1：JP 2003-251685 A
The content of the invention
Technical problem
In Biaxially stretched blow-molded period, the prefabricated component heated from heating furnace leaves heating furnace until prefabricated component cloth
Put in cavity and the time (that is, prefabricated component delivery time) of mould closing is that influence specification (is such as obtained by blow molding
Container total height and capacity) key factor.Therefore, in order to keep the specification of container molding constant, it is important that protect
The delivery time for holding each prefabricated component is constant.
However, in above-mentioned conventional blow molding apparatus, heating furnace is configured in prefabricated component arranged in series and is passed
Prefabricated component is heated while sending, and the prefabricated component sent out in order from heating furnace is disposed in chamber by transmitting machine
In body.Therefore, the delivery time of the prefabricated component being arranged in the cavity of mould is different, so as to cause to be blow molded into cavity
The declinable problem of rule of the container of type.
Therefore it provides such a blow molding apparatus will be helpful：Even if the blow molding apparatus are by advance
Under the configuration of the cavity that product is sent in batch-type mould with the different delivery times, it is also possible to keep prefabricated by blow molding
The constant specification of the container that part is obtained.
The solution of problem
Blow molding apparatus according to the disclosure are used for prefabricated component blow molding into predetermined shape, and the prefabricated component is
Be formed as the drum bottom of with using resin material, the blow molding apparatus include：
Batch-type (batch-type) mould, the batch-type mould is provided with multiple cavities；
Heating furnace, to the prefabricated component while heating furnace is configured in multiple prefabricated component arranged in series and is transmitted
Heated；
Transmission machine, the transmission machine is configured to after prefabricated component is heated and is sequentially sent out from heating furnace, will be pre-
Product is sent to the cavity of mould；And
Fluid under pressure feeder, the fluid under pressure feeder is configured in prefabricated component is arranged in all cavitys and mould
Fluid under pressure is supplied to each prefabricated component in prefabricated component after closure.
In the blow molding apparatus according to the disclosure, in prefabricated component first from the cavity for being arranged in mould is prefabricated
Part from heating furnace send out until the prefabricated component after heating be arranged in all cavitys and mould close time be preferably 5 seconds or
It is more to 11 seconds or less.
Blow molding apparatus according to the disclosure preferably also include two in the mould in parallel for heating furnace, make
The prefabricated component sent out from the heating furnace between two moulds must be classified by transmitting machine, between two moulds alternately
Ground performs and prefabricated component is arranged in cavity and fluid under pressure is supplied into prefabricated component.
Beneficial effect
According to the disclosure, by fluid under pressure supplied be sent in the prefabricated component being arranged in the cavity of batch-type mould come
Perform liquid blow molding.Therefore, even if prefabricated component is sent in the cavity of batch-type mould with the different delivery times, pass through
The specification of the container that blow molding prefabricated component is obtained can also keep constant.
Brief description of the drawings
In the accompanying drawings：
Fig. 1 schematically shows the blow molding apparatus in one of embodiment of the present disclosure；And
Fig. 2 shows the prefabricated component delivery time with the capacity of blow molding bottle and the relation of volume change.
Specific embodiment
With reference now to accompanying drawing, describe the example of the disclosure in detail.
Prefabricated component PF is molded into tool by the blow molding apparatus (it is in embodiment of the present disclosure) shown in Fig. 1
There is the container of predetermined shape, the prefabricated component PF is formed as the cylindrical shape bottom of with using resin material.The implementation method
The situation into the bottle filled with liquid (such as beverage) by prefabricated component PF blow moldings is shown.
As using the blow molding apparatus blow molding into prefabricated component PF, can for example use by such as polypropylene
(PP) or PEN (PET) resin material formed prefabricated component.
Blow molding apparatus have the mould 1 for blow molding.Mould 1 is provided with the batch-type of multiple cavities 2
(batch-type) mould, and each cavity is formed as bottle shape.The implementation method shows to be set along straight line in mould 1
Six situations of cavity 2.Although not shown details, mould 1 can be opened into left-right parts, and by opening mould 1,
Cavity 2 can be together opened, and shaped article can be removed from mould 1.Prefabricated component PF is disposed with cavity 2 by closing
Mould 1, can by prefabricated component PF be arranged on cavity 2 in.It should be noted that the upper surface upward opening of mould 1, and each is prefabricated
The oral area of part PF is arranged in this opening.
In this embodiment, blow molding apparatus are formed as being provided with a pair of shuttle-types of mould 1 (shuttle type).
The pair of mould 1 has identical basic structure, and abreast arranges so that the aligning direction of cavity 2 is parallel, and by
Corresponding guide rail 3 is guided, with being capable of to the left and to the right linear reciprocal movement in Fig. 1.
In order to fluid under pressure is supplied in the prefabricated component PF in the cavity 2 of mould 1, in blow molding apparatus
Fluid under pressure feeder 4 is set.Fluid under pressure feeder 4 for example can be configured to include the plunger displacement pump driven by servomotor.
Corresponding nozzle unit 5 is provided with the upper part of mould 1, and fluid under pressure feeder 4 is connected to this
A little nozzle units 5.Nozzle unit 5 can be moved vertically, and can be abutted with the upper surface of mould 1.Nozzle unit 5 is provided with
Multiple (in the present embodiment, six) nozzle (not shown), when nozzle unit 5 abuts the top surface of mould 1, the nozzle
On the oral area of the prefabricated component PF being assembled in each cavity 2 of mould 1, and can be by from fluid under pressure feeder 4
The fluid under pressure supplied by nozzle is supplied in prefabricated component PF.
In the present embodiment, single nozzle unit 5 is set for each mould 1 in the pair of mould 1, but
Can be using the configuration for a nozzle unit 5 is shared by mould 1.Nozzle unit 5 can be provided with during blow molding
The stretch rod of axial tension prefabricated component PF.Additionally, fluid under pressure feeder 4 can be provided with temperature-adjusting device, the temperature
Adjusting means keeps the temperature of liquid while the liquid circulation inside nozzle unit 5 is made.
As the liquid of the liquid blow molding being supplied to for fluid under pressure feeder 4 in prefabricated component PF, it is possible to use
The content liquid in bottle is filled into eventually as product (beverage, cosmetics, medicine etc.).This method allows to omit in
The step of holding liquid filling bottle, therefore simplify the production process and structure of blow molding apparatus.
Blow molding apparatus have the heating furnace 6 for prefabricated component PF to be heated to predetermined temperature.Heating furnace 6 is provided with edge
The heater 6a that a part for the circular path of the conveyer 7 placed with circular pattern is set.Heater 6a can be by various
Disposition of heating component, such as heater wire, ceramic heater etc..
Conveyer 7 is configured to rotate counterclockwise in Fig. 1, and allows that prefabricated component PF is arranged on the entrance of heating furnace 6
At the part at place.Conveyer 7 can be set along heater 6a transmission orders and arranged in series multiple prefabricated component PF.Cause
This, predetermined temperature is heated to by heating furnace 6 by arranged in series and by multiple prefabricated component PF that conveyer 7 is transmitted, and will
The outlet of the multiple prefabricated component PF from heating furnace 6 is sequentially sent out.
Also there is conveyer 7 spacing to change function, and the multiple (six) that can be sent out from the outlet of heating furnace 6 adds
The prefabricated component PF series connection alignments of heat, so that will be described prefabricated with the spacing corresponding with the spacing of the cavity 2 being arranged in mould 1
Part PF is aligned.
Blow molding apparatus are provided with the transmission machine 8 for prefabricated component PF.The transmission machine 8 can for example be provided with energy
Enough clamp multiple holders of the oral area of prefabricated component PF.Sent out from heating furnace 6 in the prefabricated component PF of heating and with predetermined
After spacing arrangement, multiple prefabricated component PF can be sent to transmission machine 8 cavity 2 of mould 1.In this embodiment, exist
Before prefabricated component PF is transmitted by transmitting machine 8, mould 1 is shifted along guide rail 3 towards heating furnace 6, and mould 1 cavity 2
The prefabricated component PF of the neighbouring outlet external series alignment in heating furnace 6 is set.Transmission machine 8 is protected using multiple (6) holders
Multiple (6) prefabricated component PF of all series connection alignments is held, is moved up in the side orthogonal with the direction of displacement of conveyer 7, and
Prefabricated component PF is arranged in corresponding cavity 2.
By closing the mould 1 of the prefabricated component PF that heating is disposed with wherein cavity 2, prefabricated component PF can be arranged on chamber
In body 2.Once completing installations of the prefabricated component PF in cavity 2, mould 1 can be just displaced under nozzle unit 5 along guide rail 3
Side.
In the present case, the multiple prefabricated component PF for sequentially being sent out from heating furnace 6 are connected with preset space length and are aligned, so
Cavity 2 is sent to together by transmitting machine 8 afterwards, but this example is not restricted.Can be using such structure：Make
When in prefabricated component PF sends out from heating furnace 6, one in sending it to cavity 2 by transmitting machine 8.
Additionally, in the present case, mould 1 can be along the freely linear movement of guide rail 3, and by transmission machine
Before 8 transmission prefabricated component PF, mould 1 is displaced to the position outside the outlet of neighbouring heating furnace 6, then will by transmitting machine 8
Prefabricated component PF is sent to cavity 2, but this example is not restricted.For example, such as the mould 1 of the bottom in Fig. 1
It is shown, can will the exit of heating furnace 6 series connection alignment multiple prefabricated component PF for corresponding die class to left side with
Right side, and the multiple prefabricated component PF for being classified can be together sent to the mould 1 positioned at the lower section of nozzle unit 5 by conveyer 8
Cavity 2, rather than making mould 1 from the lower section of nozzle unit 5 displacement.
The pair of mould 1 is arranged so that：The process is performed by making the cycle of process be transformed into each other 180 ° so that
It is alternately carried out that prefabricated component PF is arranged in the cavity 2 of mould 1 and is supplied to fluid under pressure between mould 1 to be arranged in
Prefabricated component PF (liquid blow molding) in cavity 2.
Next, describing for forming bottle by liquid blow molding prefabricated component PF using this blow molding apparatus
The step of (container).
First, prefabricated component PF is sequentially positioned in conveyer 7, and is entered by 6 couples of multiple prefabricated component PF of heating furnace
Row heating.These prefabricated components PF is sequentially heated in arranged in series and while transmitted by conveyer 7 by heating furnace 6.Once it is many
Individual prefabricated component PF is sequentially sent out from heating furnace 6 and is connected with preset space length and is aligned, and will pass through transmission machine 8 by multiple prefabricated components
PF is transmitted and they is arranged in the opening cavity 2 corresponding in mould 1 together.By this way by heating
After prefabricated component PF is arranged in all cavitys 2, closes mould 1 and be arranged in corresponding cavity 2 with by prefabricated component PF.
Next, making that there is the mould 1 of the prefabricated component PF in cavity 2 to be displaced under nozzle unit 5 along guide rail 3
Side.Nozzle unit 5 declines towards the upper surface of mould 1, and the nozzle of the nozzle unit 5 is assemblied in the oral area of prefabricated component PF,
And fluid under pressure is supplied in prefabricated component PF via nozzle unit 5 from fluid under pressure feeder 4.Therefore, on prefabricated component PF
Liquid blow molding is performed simultaneously.During this liquid blow molding, the stretch rod in by being arranged on nozzle unit 5
(not shown) vertically (axial direction) stretch while, the press water level land (footpath of the liquid by being supplied from fluid under pressure feeder 4
To) each prefabricated component PF is stretched, with the bottle that the cavity 2 formed along mould 1 shapes.
After the liquid blow molding, can perform as needed for making the pumping liquid of fluid under pressure feeder 4
Resorption process, to adjust the amount of the liquid being filled into mold bottles.
Once completing liquid blow molding, mould 1 is just opened, and will be filled with being used as content liquid by removing device 9
The bottle of the liquid of body is removed as final products from mould 1.
When the prefabricated component PF of in mould 1 performs liquid blow molding, another mould 1 is displaced to and is adjacent to
The position of heating furnace 6, and sequentially sent out from heating furnace 6 and with multiple prefabricated components of preset space length series connection alignment by transmission
Machine 8 is arranged in cavity 2.By this way, alternately performed in each mould 1 and prefabricated component PF is arranged in cavity 2
And liquid blow molding.Therefore, it can improve the product manufacturing cycle of the blow molding apparatus.
Using above-mentioned blow molding apparatus, the multiple prefabricated component PF in the multiple cavities 2 of mould 1 are arranged in arranged in series
And heated by heating furnace 6 while transmission by conveyer 7, sequentially sent out from heating furnace 6, it is aligned with preset space length, Ran Houyi
Rise and be sent to corresponding cavity 2.Therefore, for each prefabricated component PF in the multiple prefabricated component PF in cavity 2, transmission
Time is different.However, using this blow molding apparatus, the prefabricated component PF in the cavity 2 of mould 1 is to use pressurized fluid
Body is rather than forced air blow molding.Therefore, even if the delivery time is different, the multiple prefabricated component PF can also be molded as
Bottle with constant specification (that is, there is small change in terms of the specification of such as total height and capacity).In other words, can be with
Stably manufactured with the bottle for expecting specification from multiple prefabricated component PF with the different delivery times.The delivery time of prefabricated component refer to from
Prefabricated component PF leaves heating furnace 6 until being wherein provided with the time that the mould 1 of prefabricated component PF is closed.
Specifically, it is pre- from first in the prefabricated component PF being arranged in the cavity 2 of mould 1 in the blow molding apparatus
Product PF is sent out until the prefabricated component PF for heating is arranged in all cavitys 2 and the pent time of mould 1 is excellent from heating furnace 6
Elect as 5 seconds or more to 11 seconds or less.In other words, while through all many of liquid body blow molding in a mould 1
The delivery time of individual prefabricated component PF is preferably set to 5 seconds or more to 11 seconds or less.By using this set, one can be entered
The change of the specification of bottle after step reduction liquid blow molding.
In order to test the change of the specification of bottle after liquid blow molding is carried out to prefabricated component PF with the different delivery times
Change, tested in the following manner：Using polypropylene (PP) as prefabricated component PF, prefabricated component PF is heated in heating furnace 6
To 135 DEG C, the temperature of the liquid being fed into prefabricated component PF by fluid under pressure feeder 4 is set as 20 DEG C, and uses
With foregoing blow molding apparatus identical condition of molding.By the delivery time of prefabricated component PF in the way of one second every time from 5 seconds
Change during to 13 seconds, perform five liquid blow moldings for each delivery time to be molded the bottle that capacity is 385ml.Table 1
List result.The capacity is the maximum capacity of mold bottles.Table 1 lists capacity (ml), the appearance of each mold bottles
Difference between the average value (Avg.) of amount and the maxima and minima under each delivery time, that is, change (R).
[table 1]
In the experimental result that table 1 is listed, Fig. 2 shows the capacity and appearance of prefabricated component delivery time and blow molding bottle
The relation of amount change R.
Table 1 and Fig. 2 to show and carry out blow molding prefabricated component PF by using the blow molding apparatus of the disclosure so that installs
Prefabricated component PF in the cavity 2 of mould 1 carrys out blow molding using fluid under pressure rather than forced air, even if prefabricated component PF
Delivery time increases, it is also possible to reduce the volume change of the bottle formed by carrying out blow molding to prefabricated component PF, and
Bottle can be formed as with constant specification.
Specifically, if as shown in Fig. 2 from the first prefabricated component PF in the prefabricated component PF being arranged in the cavity 2 of mould 1
Sent out until the prefabricated component PF for heating is arranged in all cavitys 2 and the time of the closing of mould 1 is for 5 seconds or more from heating furnace 6
Up to 11 seconds or less, then can more effectively reduce the specification change of bottle.If conversely, the delivery time of prefabricated component PF
More than 11 seconds, then in the case of the identical delivery time, the change R of the specification of blow molding bottle increases.
The disclosure is not limited to embodiment of above, and can carry out without departing from the scope of the disclosure various
Modification.
For example, in embodiment of above, six cavitys 2 of arranged in series in each mould 1, but this example is not limit
Property processed.The quantity and arrangement of cavity 2 can freely set.
In embodiment of above, fluid under pressure feeder 4 is the plunger displacement pump driven by servomotor, but this example
It is not restricted.Fluid under pressure feeder 4 can be driven by another drive mechanism of hydraulic cylinder, cylinder etc..
Additionally, setting stretch rod instead of in nozzle unit 5, prefabricated component PF can be in the following manner stretched：Only pass through
From the pressure of the liquid of the supply of fluid under pressure feeder 4 in the upper expansion of both vertical direction (axial direction) and horizontal direction (radial direction)
Exhibition.
Reference numerals list
1 mould
2 cavitys
3 guide rails
4 fluid under pressure feeders
5 nozzle units
6 heating furnaces
6a heaters
7 conveyers
8 transmission machines
9 remove device
Claims (3)
1. it is a kind of for by prefabricated component blow molding into predetermined shape blow molding apparatus, the prefabricated component used resin
Material is formed as the cylindrical shape bottom of with, and the blow molding apparatus include：
Batch-type mould, is provided with multiple cavities；
Heating furnace, is configured in multiple prefabricated component arranged in series and the prefabricated component is heated when being transmitted；
Transmission machine, is configured to after the prefabricated component is heated and is sequentially sent out from the heating furnace, will be described prefabricated
Part is sent to the cavity of the mould；And
Fluid under pressure feeder, is configured to be arranged in all cavitys in the prefabricated component and after mould closing
Fluid under pressure is supplied to each prefabricated component in the prefabricated component.
2. blow molding apparatus as claimed in claim 1, wherein described pre- from the cavity for being arranged in the mould
The first prefabricated component in product is sent out from the heating furnace, in the prefabricated component after heating is arranged in all cavitys
And the time untill the mould is closed is 5 seconds to 11 seconds.
3. blow molding apparatus as claimed in claim 1 or 2, it is also included for two heating furnace, parallel institutes
Mould is stated, wherein the prefabricated component sent out from the heating furnace is given by each mould by the transmission machine, from
And alternately performed between described two moulds and the prefabricated component is arranged in the cavity and by the fluid under pressure
It is supplied to the prefabricated component.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-157005 | 2014-07-31 | ||
| JP2014157005A JP6313157B2 (en) | 2014-07-31 | 2014-07-31 | Blow molding equipment |
| PCT/JP2015/003783 WO2016017153A1 (en) | 2014-07-31 | 2015-07-28 | Blow molding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106715081A true CN106715081A (en) | 2017-05-24 |
Family
ID=55217069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580040662.4A Pending CN106715081A (en) | 2014-07-31 | 2015-07-28 | Blow molding device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10322540B2 (en) |
| EP (1) | EP3173211B1 (en) |
| JP (1) | JP6313157B2 (en) |
| CN (1) | CN106715081A (en) |
| WO (1) | WO2016017153A1 (en) |
Cited By (1)
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|---|---|---|---|---|
| CN109641381A (en) * | 2016-08-31 | 2019-04-16 | 株式会社吉野工业所 | Liquid blow molding method |
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| DE102014018778A1 (en) * | 2014-12-19 | 2016-06-23 | Khs Corpoplast Gmbh | Machine for producing containers filled with a liquid product from preforms made of a thermoplastic material |
| JP6693822B2 (en) * | 2016-06-30 | 2020-05-13 | 株式会社吉野工業所 | Container manufacturing method by liquid blow molding |
| JP6837763B2 (en) | 2016-06-30 | 2021-03-03 | 株式会社吉野工業所 | Container manufacturing method |
| JP6802659B2 (en) * | 2016-07-29 | 2020-12-16 | 株式会社吉野工業所 | Manufacturing method of liquid storage container |
| JP6809835B2 (en) | 2016-08-03 | 2021-01-06 | 株式会社吉野工業所 | Liquid blow molding method |
| IT202000005350A1 (en) * | 2020-03-12 | 2021-09-12 | Siapi S R L | Method and plant for the production of plastic containers |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016017153A1 (en) | 2016-02-04 |
| EP3173211B1 (en) | 2020-05-13 |
| US10322540B2 (en) | 2019-06-18 |
| JP2016032924A (en) | 2016-03-10 |
| EP3173211A4 (en) | 2018-02-07 |
| US20170210052A1 (en) | 2017-07-27 |
| JP6313157B2 (en) | 2018-04-18 |
| EP3173211A1 (en) | 2017-05-31 |
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